Absolutely. Simple, and modular - with wide availability of (perhaps 'universal') replacement parts.

We're observing in real time - mostly via skyrocketing insurance rates - the impact & unsustainability of expensive, all-proprietary parts. Vehicles are getting totaled out now more than ever for things that should be repairable.

Speaking of diesel - what I really want is a simple plug-in hybrid truck or SUV (e.g. a USA Toyota Hilux or 4runner) with ~50-80 miles of battery-only range, and a diesel generator for 'indefinite' range extension.